CVE-2026-77261: mcp-atlassian mcp atlassian

csirt@kutim:~/threat-intel/cve/CVE-2026-77261

CVSS 8.5 · High EPSS 0,32%

Kerentanan Server-Side Request Forgery (SSRF) pada mcp-atlassian mcp atlassian. Skor CVSS 3.1 8.5 (High) menurut NVD.

Deskripsi (NVD)

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, _make_ssrf_safe_hook is omitted from JiraFetcher and ConfluenceFetcher sessions created through the basic-auth and oauth_pat branches. If an attacker-controlled or compromised configured Atlassian instance returns a redirect to an internal address, those sessions can follow the redirect without revalidating its destination. This issue is fixed in version 0.22.0.

Rincian

Terbit di NVD: 22 September 2026
Terakhir diubah: 25 September 2026
Status NVD: Analyzed
CVSS 3.1: 8.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,32% peluang dieksploitasi; lebih tinggi dari 23,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
mcp-atlassian	mcp atlassian	Semua versi sebelum 0.22.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-6529-c226-h328 exploit · advisory vendor
https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460 patch
https://github.com/sooperset/mcp-atlassian/pull/1448 patch
https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0 release notes

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.